Germination Guide

Click on a species name below to see it's germination tips.
Search for a genus or species by entering specific words or parts of words.
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Chaenorrhinum sp.

?

We have incomplete information on the germination of this species. Sometimes we offer an educated guess about which approach you could try. Let us know what is successful.

A

Sow @ 20°C. Seed germinates within 3 months.
Chaerophyllum aureum

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

J

Sow @4°C for 3 weeks, then place @20°C.
Chaerophyllum hirsutum 'Roseum'

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

Chaerophyllum luteum

?

We have incomplete information on the germination of this species. Sometimes we offer an educated guess about which approach you could try. Let us know what is successful.

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

Chaerophyllum maculatum

?

We have incomplete information on the germination of this species. Sometimes we offer an educated guess about which approach you could try. Let us know what is successful.
Chaerophyllum roseum

?

We have incomplete information on the germination of this species. Sometimes we offer an educated guess about which approach you could try. Let us know what is successful.
Chaerophyllum sp.

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

A

Sow @ 20°C. Seed germinates within 3 months.
Chamaecyparis lawsoniana

H

Use repeated cycles of 4°C, then 20°C for 3 months each. Germination is very prolonged.

*

This species needs special care as described.
13 - 42% germination rate
Chamaecyparis pisifera

A

Sow @ 20°C. Seed germinates within 3 months.
Chamaecytisus austriacus

A

Sow @ 20°C. Seed germinates within 3 months.

1

Resents transplanting.

3

Requires light or the small seeds should be surface sown. See https://www.youtube.com/watch?v=RgkXUSI1GWo&index=1&list=UUJfYCNSWCIuOB2...

6

Requires scarification. Nick or rub between sheets of sandpaper. See https://youtu.be/icB9HrqdQqU

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ
Chamaecytisus hirsutus

A

Sow @ 20°C. Seed germinates within 3 months.

1

Resents transplanting.

6

Requires scarification. Nick or rub between sheets of sandpaper. See https://youtu.be/icB9HrqdQqU

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ
Chamaecytisus purpureus

A

Sow @ 20°C. Seed germinates within 3 months.

1

Resents transplanting.

6

Requires scarification. Nick or rub between sheets of sandpaper. See https://youtu.be/icB9HrqdQqU

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ
Chamaecytisus pygmaeus

A

Sow @ 20°C. Seed germinates within 3 months.

1

Resents transplanting.

6

Requires scarification. Nick or rub between sheets of sandpaper. See https://youtu.be/icB9HrqdQqU

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ
Chamaecytisus ratisbonensis

A

Sow @ 20°C. Seed germinates within 3 months.

1

Resents transplanting.

6

Requires scarification. Nick or rub between sheets of sandpaper. See https://youtu.be/icB9HrqdQqU

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ
Chamaedaphne calyculata

A

Sow @ 20°C. Seed germinates within 3 months.

3

Requires light or the small seeds should be surface sown. See https://www.youtube.com/watch?v=RgkXUSI1GWo&index=1&list=UUJfYCNSWCIuOB2...
peat based medium
Chamaenerion angustifolium

?

We have incomplete information on the germination of this species. Sometimes we offer an educated guess about which approach you could try. Let us know what is successful.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

Chamerion crassum

A

Sow @ 20°C. Seed germinates within 3 months.
Chamerion hirsutum

A

Sow @ 20°C. Seed germinates within 3 months.
Chamerion fleischeri

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

Chasmanthium latifolium 'River Mist'

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Chasmanthium latifolium

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Cheilanthes argentea

A

Sow @ 20°C. Seed germinates within 3 months.

*

This species needs special care as described.
pour boiling water over milled sphagnum moss, sow seeds, enclose in plastic bag
Cheilanthes lanosa

A

Sow @ 20°C. Seed germinates within 3 months.

*

This species needs special care as described.
pour boiling water over milled sphagnum moss, sow seeds, enclose in plastic bag
Cheiranthus 'Moonlight'

A

Sow @ 20°C. Seed germinates within 3 months.
Cheiranthus allionii

A

Sow @ 20°C. Seed germinates within 3 months.
Cheiranthus sp.

A

Sow @ 20°C. Seed germinates within 3 months.
Cheiranthus x allionii

A

Sow @ 20°C. Seed germinates within 3 months.
Chelidonium japonicum

A

Sow @ 20°C. Seed germinates within 3 months.
Chelidonium majus

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

A

Sow @ 20°C. Seed germinates within 3 months.

*

This species needs special care as described.
germination unlikely after dry storage > 6 months; use E in repeated cycles if seed does not germinate
Chelidonium majus 'Flore Pleno'

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

E

Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.

*

This species needs special care as described.
germination unlikely after dry storage > 6 months; repeat cycle if seed does not germinate
Chelone albida

F

Sow @ 4°C.
poor germination
Chelone glabra

A

Sow @ 20°C. Seed germinates within 3 months.

3

Requires light or the small seeds should be surface sown. See https://www.youtube.com/watch?v=RgkXUSI1GWo&index=1&list=UUJfYCNSWCIuOB2...
Chelone lyonii

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Chelone lyonii 'Hot Lips'

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Chelone obliqua

A

Sow @ 20°C. Seed germinates within 3 months.
Chelone obliqua v. alba

A

Sow @ 20°C. Seed germinates within 3 months.
Chelone sp.

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.

*

This species needs special care as described.
seed viability < 1 year for most species which are cold germinators
Chelonopsis  yagiharana

A

Sow @ 20°C. Seed germinates within 3 months.
Chenopodium nitidum

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

Chiastophyllum oppositifolium

A

Sow @ 20°C. Seed germinates within 3 months.

3

Requires light or the small seeds should be surface sown. See https://www.youtube.com/watch?v=RgkXUSI1GWo&index=1&list=UUJfYCNSWCIuOB2...
Chilopsis linearis

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

A

Sow @ 20°C. Seed germinates within 3 months.

2

Requires darkness.
Chimaphila menziesii

A

Sow @ 20°C. Seed germinates within 3 months.

*

This species needs special care as described.
pour boiling water over milled sphagnum moss, sow seeds, enclose in plastic bag
Chimaphila umbellata

A

Sow @ 20°C. Seed germinates within 3 months.

*

This species needs special care as described.
pour boiling water over milled sphagnum moss, sow seeds, enclose in plastic bag
Chionanthus retusus

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.
Chionanthus virginicus

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ
Chionodoxa 'Lilacina'

*

This species needs special care as described.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

best sown in fall; grow seedlings @ 4°C; leave in pot for 2 years before planting out
Chionodoxa forbesii

*

This species needs special care as described.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

best sown in fall; grow seedlings @ 4°C; leave in pot for 2 years before planting out
Chionodoxa luciliae

*

This species needs special care as described.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

best sown in fall; grow seedlings @ 4°C; leave in pot for 2 years before planting out
Chondrosum gracile

A

Sow @ 20°C. Seed germinates within 3 months.
Chorispora bungeana

A

Sow @ 20°C. Seed germinates within 3 months.

*

This species needs special care as described.
very thick seed coat; hard to germinate; may benefit from leaching effect of rain
Chrysanthemum weyrichii

A

Sow @ 20°C. Seed germinates within 3 months.
Chrysanthemum multicaule

A

Sow @ 20°C. Seed germinates within 3 months.
Chrysanthemum 'Sunny Side Up'

A

Sow @ 20°C. Seed germinates within 3 months.
Chrysanthemum alpinum

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Chrysanthemum coccineum

A

Sow @ 20°C. Seed germinates within 3 months.
Chrysanthemum coccineum 'Robinson Mix'

A

Sow @ 20°C. Seed germinates within 3 months.
Chrysanthemum coronarium

A

Sow @ 20°C. Seed germinates within 3 months.

N

Sow directly in garden.
Chrysanthemum leontopodium

A

Sow @ 20°C. Seed germinates within 3 months.
Chrysanthemum macrophyllum

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

A

Sow @ 20°C. Seed germinates within 3 months.
Chrysanthemum minimum

A

Sow @ 20°C. Seed germinates within 3 months.